$$d{"month_abb"}=
    [["Jan","Feb","Mar","Apr","Mai","Jun",
      "Jul","Aug","Sep","Okt","Nov","Dez"],
     ["J${a}n","Feb","M${a}r","Apr","Mai","Jun",
      "Jul","Aug","Sep","Okt","Nov","Dez"]];

##</code><code>##

  $$hash{"a:"} = "\xe4";   #   LATIN SMALL LETTER A WITH DIAERESIS